Bookbinding and the Conservation of Books
A Dictionary of Descriptive Terminology

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thong binder

A binding consisting of two specially constructed wooden hoards joined together by woven cotton or nylon thongs. One end of each thong is fastened to a clamping bar which is hinged to the back edge of the upper board, while the other end is fastened to a movable bar enclosed in the lower board. A key allows the thongs to be slackened between the clamping bars, enabling the punched leaves to be added or removed from the binder. The clamping bar, together with the oval T-shaped punching, secures the leaves firmly. A relatively extensive binding margin is required for this type of binder, which is equally as strong and usually lighter in weight than the POST BINDER , and is reasonably durable. (276 )

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